arXiv:nucl-th/9612065·v1·Nuclear Theory
The nonmesonic weak decay of the hypertriton
J. Golak (1) · K. Miyagawa (2) · H. Kamada (3) · H. Witała (1) · W. Glöckle (4) · A. Parreño (5) · A. Ramos (5) · C. Bennhold (6) ((1) Jagellonian Univ. · (2) Okayama Univ. of Science · (3) Paul Scherrer Institute · (4) Ruhr Univ. Bochum · (5) Univ. of Barcelona · (6) The George Washington Univ.)
Abstract
The nonmesonic decay of the hypertriton is calculated based on a hypertriton wavefunction and 3N scattering states, which are rigorous solutions of 3-body Faddeev equations using realistic NN and hyperon-nucleon interactions. The pion-exchange together with heavier meson exchanges for the transition is considered. The total nonmesonic decay rate is found to be 0.5% of the free decay rate. Integrated as well as differential decay rates are given. The p- and n- induced decays are discussed thoroughly and it is shown that the corresponding total rates cannot be measured individually.
Comments: 27 pages, 20 figures, revtex, submitted to Phys. Rev. C